Experience the extraordinary with the Sanzhi 200KW Two-Stage Screw Air Compressor, an esteemed creation from the prestigious Sanzhi (Henan) Compressor Co., Ltd., a leading figure in the Chinese compressor sector. Enter a realm of unmatched value with our Permanent Magnet Variable Frequency Two-Stage Screw Air Compressor, expertly designed to deliver outstanding performance at highly competitive factory prices. This engineering marvel is further enhanced with state-of-the-art Centrifugal Fans, ensuring top-tier energy efficiency and substantial energy savings. Tailored for stationary applications, this compressor is an unstoppable powerhouse, designed to excel in the most challenging industrial environments, setting new benchmarks in both performance and reliability.
Internal Structure Frontside
Internal Structure Backside
Working Principle
At the forefront of air compression technology, Sanzhi (Henan) Compressor Co., Ltd. pioneers a journey toward optimal efficiency, striking a harmonious balance between single-stage and multi-stage systems. In theory, energy needs of single-stage should rival that of multi-stage, but reality introduces factors such as transmission power losses, bearing friction, and viscosity-related cooling that call for additional energy. By skillfully minimizing compression ratios at each stage, multi-stage systems emerge as paragons of efficiency, requiring significantly less power than their single-stage counterparts. This advancement not only enhances system performance but also drastically curtails superfluous energy consumption, setting a groundbreaking standard in power efficiency.
Behold the revolutionary two-stage screw air compressor-a beacon of modern engineering triumph. This exceptional device showcases a cutting-edge dual rotary screw mechanism, with each stage comprising an active screw propelling a passive screw via an expertly crafted external power transfer system. The first stage boasts a fine-tuned low-pressure screw assembly for peak performance, while the second stage accommodates a high-pressure screw assembly. Essential to this intricate process are sealing air films enveloping each screw, directing the compression journey through three pivotal phases: effortless air intake, dynamic pressurization that elevates efficiency to new heights, and a final exhaust phase that completes the cycle with remarkable precision.
First stage compression: The commencement of the two-stage screw air compressor's operation epitomizes engineering brilliance. An ultra-advanced low-pressure screw assembly assumes control, skillfully channeling gas into the compression chamber through a meticulously designed suction valve. As the rotor spins at an impressive speed, the gas undergoes initial compression, laying the groundwork for intensified compression in the next stage.
Second stage compression: As the process transitions to the second stage, gas enters a specially crafted, more confined screw space, where pressure and temperature are expertly elevated to unprecedented levels. The process reaches its pinnacle as the exhaust valve opens, allowing high-pressure gases to exit, thereby completing the sophisticated compression cycle with unmatched efficiency.
The sophisticated process of air compression commences as ambient air gracefully enters through the air filter, encountering a trace of lubricating oil within the compression chamber. This blend undergoes an initial compression to intermediate pressure, followed by substantial cooling through interaction with oil mist in the cooling channel. The cooled gas then proceeds to the second-stage rotor, where it experiences a secondary compression phase, achieving the intended final exhaust pressure. This expertly orchestrated cycle culminates as the compressed gas is elegantly expelled through the exhaust valve, marking the completion of a comprehensive and highly efficient air compression process.
| Sanzhi (Henan) Compressor Co,. Ltd. |
| Two-Stage Compression Permanent Magnet Variable Frequency Screw Air Compressor |
| Model |
Power |
Exhaust pressure |
Free air delivery* of unit at working pressure |
Voltage |
Frequency |
Air outlet discharge size |
Weight |
Dimensions |
| KW |
Mpa |
m³/min |
V |
Hz |
Inch |
Kg |
L*W*H(mm) |
| SZ15VF-II |
15 |
0.5 |
4.00 |
380 |
50 |
G1½ |
660 |
1450*780*1180 |
| 0.8 |
3.00 |
| 1.3 |
2.00 |
| SZ19VF-II |
18.5 |
0.5 |
5.00 |
380 |
50 |
G1½ |
680 |
1450*780*1180 |
| 0.8 |
4.00 |
| 1.3 |
3.80 |
| 1.6 |
2.20 |
| SZ22VF-II |
22 |
0.5 |
6.60 |
380 |
50 |
G1½ |
730 |
1650*880*1280 |
| 0.8 |
4.20 |
| 1.3 |
3.00 |
| 1.6 |
2.50 |
| SZ30VF-II |
30 |
0.5 |
7.00 |
380 |
50 |
G1½ |
980 |
2000*1260*1560 |
| 0.8 |
6.40 |
| 1.3 |
4.00 |
| 1.6 |
3.00 |
| SZ37VF-II |
37 |
0.5 |
10.00 |
380 |
50 |
G1½ |
1080 |
2000*1260*1560 |
| 0.8 |
7.00 |
| 1.3 |
5.50 |
| 1.6 |
4.00 |
| SZ45VF-II |
45 |
0.5 |
13.00 |
380 |
50 |
G2 |
1980 |
2000*1260*1560 |
| 0.8 |
10.00 |
| 1.3 |
6.50 |
| 1.6 |
5.00 |
| SZ55VF-II |
55 |
0.5 |
17.00 |
380 |
50 |
G2 |
2180 |
2150*1300*1730 |
| 0.8 |
12.00 |
| 1.3 |
8.60 |
| 1.6 |
5.00 |
| SZ75VF-II |
75 |
0.5 |
20.00 |
380 |
50 |
G2 |
2280 |
2150*1300*1730 |
| 0.8 |
16.50 |
| 1.3 |
11.00 |
| 1.6 |
9.00 |
| SZ90VF-II |
90 |
0.5 |
24.00 |
380 |
50 |
DN65 |
3200 |
2700*1920*1820 |
| 0.8 |
20.00 |
| 1.3 |
14.00 |
| 1.6 |
11.00 |
| SZ110VF-II |
110 |
0.5 |
28.00 |
380 |
50 |
DN65 |
3360 |
2700*1920*1820 |
| 0.8 |
24.50 |
| 1.3 |
18.00 |
| 1.6 |
14.00 |
| Due to product updates, the above parameters are subject to deviation in kind. |
Immerse yourself in the pinnacle of German engineering excellence with our state-of-the-art centrifugal fan, a true paradigm of innovation and efficiency. This groundbreaking system, adorned with a high-speed rotating impeller, expertly modulates air velocity to deliver precise axial airflow into the impeller. Such advancement significantly heightens motor cooling efficiency, outclassing typical air-cooled fans. Our sophisticated design guarantees rapid temperature reduction, fostering seamless compressor operation and prolonging its lifespan. It's a strategic asset for any enterprise, promising unmatched reliability and durability.
1) Unmatched Efficiency of PM Motor:Our pioneering permanent magnet (PM) motor is meticulously engineered to deliver an astounding constant torque range and an extensive weak magnetic range. It surpasses standard motors by an extraordinary 20-30% increase in efficiency. Even beyond the rated frequency, the PM motor maintains its exceptional efficiency, ensuring optimal performance in all scenarios, thus maximizing productivity.
2) Maintenance-Free Motor:At the forefront of innovation, the permanent magnet motor is ingeniously designed without internal bearings, completely eliminating the typical expenses associated with motor bearing maintenance and replacement. This revolutionary design dramatically reduces overall maintenance costs while enhancing operational efficiency.
3) Integrated Frequency Converter: Boasting China's leading frequency system, our compressor provides extensive speed regulation with peerless precision. The system adeptly adapts to real-time gas demands, ensuring substantial energy savings and optimizing operational efficiency, delivering a genuine competitive edge.
4) Perfected Transmission Efficiency: With a direct shaft connection structure, the compressor features an integrated permanent magnet motor, offering a sleek and compact design. This innovative arrangement eliminates the need for couplings and other transmission components, ensuring flawless 100% transmission efficiency, establishing a new standard in performance.
5) Variable Frequency and Soft Start:Our advanced motor design significantly reduces the impact on power grid systems, safeguarding electrical infrastructure against potential damage. This enhancement extends system longevity, ensuring consistent and enduring performance.
6) Exceptional Energy Savings: Featuring a frequency conversion range from a remarkable 25% to 100% (compared to the traditional 50% to 100%), our system delivers over 30% energy savings compared to fixed-speed compressors. It also achieves approximately 5% more energy savings than standard variable frequency compressors, providing significant cost advantages for systems with variable gas demands.
7) Pioneering Two-Stage Compression Air End:Our expertly designed two-stage compression screw machine seamlessly integrates first and second-stage compression rotors within a singular casing. Each rotor is driven by gears to ensure optimal linear speed, achieving peak compression efficiency and reliability.
8) State-of-the-Art Internal Spray Curtain Cooling Method: Our high-efficiency internal spray curtain cooling method provides exceptional cooling, significantly lowering compressed air temperatures. This leads to near-isothermal compression, minimized pressure loss between stages, a reduced compression ratio, and enhanced overall compression efficiency, optimizing operational performance.
9) Minimized Internal Leakage:The advanced two-stage compression system significantly reduces the compression ratio for each stage, minimizing internal leakage between high and low-pressure ends. This enhancement boosts volumetric efficiency, ensuring superior performance.
10) Superior Noise Diminishment:The reduced compression ratio in the two-stage system significantly diminishes noise levels, especially during unloading operations, creating a quieter and more serene working environment, ideal for any setting.
11) Hassle-Free Maintenance and Service:Despite its revolutionary two-stage compression design, our system's components and structures remain akin to single-stage compressors. This design simplifies maintenance and makes service straightforward, ensuring effortless operations.
12) Removable Door Panels for Optimal Access:Constructed with noise-suppressing metal plates and lined with premium sound-absorbing material, the unit meets international noise standards. The door panels can be effortlessly removed, offering 270-degree full access that enhances maintenance efficiency and ease for service personnel.
1. Unrivaled Pricing Advantage
Sanzhi (Henan) Compressor Co., Ltd. offers our clients irresistible ex-factory deals that are competitively priced to provide a substantial market edge. This distinct advantage ensures our partners consistently surpass their competitors, securing a dominant and influential position in their respective industries.
2. Effortless Direct Transactions
Our High-Power Sanzhi 375HP Screw Air Compressor with Centrifugal Fan is directly dispatched from our state-of-the-art manufacturing facility, allowing us to deliver solutions that are both cost-effective and exceptionally proficient. These solutions are meticulously engineered to meet your specific needs and detailed specifications flawlessly.
3. Comprehensive OEM & ODM Solutions
Leveraging our extensive production capabilities and expert management acumen, we offer unmatched OEM/ODM services. These services are expertly tailored to align seamlessly with your precise requirements and forward-looking business goals, ensuring a perfect fit for your aspirations.
4. Personalized Customization Service
Dedicated to accommodating non-standard export orders, we provide customization options including voltage, power, and pressure. Partner with us to explore solutions specifically crafted to meet your unique specifications, ensuring a highly customized experience.
5. Encouragement for Small Orders
We invite you to begin with a small trial order, allowing you to directly experience the outstanding quality and unparalleled performance that our products consistently deliver, reinforcing your confidence in our offerings.
6. Expedited Delivery
Experience the benefits of our rapid delivery service for high-quality products, ensuring your timelines are respected and your operations remain seamless and uninterrupted, greatly enhancing your overall efficiency and productivity.
7. Full Authorization
We provide our valued distributors with full authorization certificates, empowering them to confidently and proudly market our prestigious SANZHI brand products, enhancing their market presence and credibility.
Successful Cases
Sanzhi (Henan) Compressor Co., Ltd is a beacon of innovation in air compression technology, boasting over a decade of unmatched expertise. Our leadership shines through with a diverse array of pioneering products, including state-of-the-art screw air compressors and revolutionary screw vacuum pumps. Our extensive range features standard and low-pressure screw air compressors, cutting-edge permanent magnet frequency conversion models, and resilient two-stage compression units. Setting the benchmark in the industry, our screw air compressors are intricately designed for the precision demands of laser cutting. Our offerings also include versatile single-tank and double-tank mobile screw variants. The portfolio is further enriched with both electric and diesel mobile screw air compressors and advanced screw vacuum pumps, all engineered for precision and reliability.
Our manufacturing prowess is bolstered by advanced assembly lines that play a pivotal role in maintaining exceptional efficiency. Driven by a team of over 50 committed and highly skilled professionals, we continuously enhance our management systems, utilizing state-of-the-art ERP solutions to significantly reduce lead times, ensuring quick delivery of our superior products.
Our unwavering commitment to superior management is highlighted by our prestigious ISO9001 quality management system certification. We diligently adhere to rigorous quality protocols, executing thorough control procedures. Every machine is subjected to an exhaustive series of inspections, including material evaluations, production oversight, and meticulous pre-delivery checks, guaranteeing that only the finest machines reach our esteemed customers.
Our dedication to customer service excellence is evident from the first interaction, offering expert pre-sales consultations to help clients choose the ideal air equipment suited to their unique needs. Our unmatched customization capabilities allow us to alter both appearance and configuration to meet personal preferences and provide OEM services for distinct dealer requirements. Our devoted sales and service team ensures swift and efficient responses, delivering a flawless after-sales experience.
At Sanzhi (Henan) Compressor Co., Ltd, we are committed to delivering high-performance, reliable products while fostering lasting customer relationships. We combine rapid delivery with exceptional product quality and competitive pricing, establishing ourselves as your trusted partner in providing comprehensive compressed air solutions.
Conveniently located in Xinzheng City, Henan Province, China, our factory enhances client accessibility with complimentary transportation from Xinzheng International Airport, just 30 kilometers away, approximately an hour's drive. We extend a warm invitation for you to visit our esteemed facility.
FAQ
Q1. Are you a trading company or manufacturer?
A: We are a seasoned manufacturer specializing in screw air compressors, with over ten years of verified industry expertise.
Q2. How do you control quality?
A: 1. We scrupulously inspect all raw materials to ensure superior quality right from the beginning.
2. Our installation procedures are carried out with meticulous attention to maintain excellence.
3. Each machine undergoes a demanding minimum of 5 continuous hours of testing before dispatch, ensuring peak performance.
Q3. What information must I provide to get the suitable machine?
1. Required air delivery capacity (expressed in CFM or m³/Min)
2. Desired working pressure (expressed in PSI, Bar, or Mpa)
3. Voltage and frequency specifications for your country (expressed in V/Hz)
4. Additional accessories needed (e.g., air tanks, filters, air dryers).
Provide these specifics, and we will engineer a bespoke solution precisely tailored to meet your needs!
Q4. What is the general unit conversion?
1Bar = 0.1Mpa = 14.5PSI
1m³/min = 35.32cfm
1KW = 1.34HP
Q5. What is the available voltage air compressor?
A: Sanzhi air compressors proudly present a versatile and dynamic range of voltage options, expertly designed to meet diverse regional demands. With meticulous configurations like 380v/50hz/3p, 400v/50hz/3p, 415v/50hz/3p, 220v/60hz/3p, and 440v/60hz/3p, we ensure seamless integration into your operations. Our unwavering commitment to providing tailored solutions is showcased through our exclusive customization services, guaranteeing that each product aligns perfectly with your unique operational needs, offering unmatched adaptability and efficiency for your enterprise.
Q6. How long is the delivery time?
A: With standard voltage specifications, we have mastered the art of swift and efficient order processing, completing orders within an impressive 15 working days post-confirmation. For orders with specific requirements, our proactive sales team will collaborate closely with you to develop a precise and harmonious timeline, ensuring a smooth and timely delivery experience tailored perfectly to your needs.
Q7. What's the payment term?
A: Our payment terms are designed for simplicity and ease. We request an initial 30% T/T payment upfront to commence the process, followed by a 40% T/T prior to shipment, and the final 30% T/T upon receiving the B/L copy. We accommodate both USD and RMB currencies, ensuring flexibility and convenience for our esteemed clients, making transactions seamless and straightforward.
Q8. How about your warranty?
A: We proudly offer a comprehensive one-year warranty on the complete machine, along with an extended two-year warranty for the screw air compressor, excluding consumable parts. This extensive coverage provides unmatched protection and assurance, safeguarding your investment with peace of mind and confidence.
Q9. What about the maintenance?
A: To maintain optimal performance and ensure longevity, we recommend the initial maintenance after the first 500 hours of operation. Subsequently, regular servicing every 2000-3000 hours is advised, tailored to your specific working environment. This approach ensures durability and reliability, keeping your equipment in peak condition, ready to meet your operational demands.
Q10. Can machines be run in high-temperature environment?
A: Absolutely, our robust machines are expertly engineered to excel in high-temperature environments. They function flawlessly across a temperature spectrum of -20°C to 45°C (-4°F to 113°F), ensuring reliable performance even under the most demanding and challenging conditions.
Q11. Do you offer OEM service?
A: Indeed, we are pleased to offer both OEM and ODM services, supported by our highly skilled and innovative design team. We warmly welcome custom orders and are committed to transforming your unique concepts into reality, ensuring your vision is realized with precision, excellence, and professionalism.
Q12. How long could your air compressor be used?
A: Our air compressors are meticulously engineered for exceptional longevity, typically offering an extraordinary lifespan exceeding 10 years. This ensures reliable and enduring performance, supporting your operations with consistency and resilience over the years.
Q13. Will you provide some spare parts for the machines?
A: Certainly, we are committed to offering steadfast support by providing essential spare parts for your machines. This guarantees a seamless and uninterrupted operational experience, enabling you to maintain optimal performance and ensure continuous productivity.
Q14. How about your after-sales service?
A: We are passionately dedicated to delivering exceptional after-sales service. Our comprehensive offerings include detailed online guides for installation and commissioning, coupled with access to our expert engineers, who are readily available for training and installation assistance. Your satisfaction and success remain our utmost priorities, ensuring a rewarding and fulfilling experience.
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